/**
 * Copyright (c) 2008, EffCode, www.effcode.com
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without modification, 
 * are permitted provided that the following conditions are met:
 * 
 * Redistributions of source code must retain the above copyright notice, this list 
 * of conditions and the following disclaimer. 
 * Redistributions in binary form must reproduce the above copyright notice, this list 
 * of conditions and the following disclaimer in the documentation and/or other materials
 * provided with the distribution. 
 * Neither the name of the EffCode nor the names of its contributors may be used 
 * to endorse or promote products derived from this software without specific prior written 
 * permission. 
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY 
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 
 * THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR 
 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, 
 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package org.effdom.impl;

import java.io.Serializable;

import org.effdom.Document;
import org.effdom.Element;
import org.effdom.Node;

/**
 * @author <a href="mailto:mattias@effcode.com">Mattias Jonsson</a>
 */
public abstract class NodeBase implements Node, Serializable {

    protected short id;

    protected DocumentImpl doc;

    protected Element parent;

    protected NodeBase(Document document, Element parent, short id) {
        this.doc = (DocumentImpl) document;
        this.parent = parent;
        this.id = id;
    }

    public short id() {
        return id;
    }

    public void setParent(Element parent) {
        this.parent = parent;
    }

    public Element parent() {
        return this.parent;
    }

    public boolean hasParent() {
        return parent != null;
    }

    public abstract void addLength(Counter counter);

    public abstract int length();

}
